Update renovate.json to use shared config

renovate.json

@@ -1,47 +1,6 @@
 {
-  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
-  "platform": "github",
-  "labels": ["renovate"],
-  "extends": [
-    "config:base",
-    ":rebaseStalePrs"
-  ],
-  "enabledManagers": [
-    "nuget",
-    "github-actions"
-  ],
-  "stabilityDays": 3,
-  "prHourlyLimit": 0,
-  "prConcurrentLimit": 0,
-  "branchConcurrentLimit": 0,
-  "dependencyDashboard": false,
-  "gitAuthor": "Renovate Bot <[email protected]>",
-  "packageRules": [
-    {
-      "matchManagers": ["nuget"],
-      "excludePackagePatterns": ["^Microsoft\\.Extensions\\.", "^System\\.", "^dotnet-sdk$"],
-      "groupName": "NuGet dependencies"
-    },
-    {
-      "matchManagers": ["nuget"],
-      "matchPackagePatterns": ["^Microsoft\\.Extensions\\.", "^System\\."],
-      "groupName": "Ignored NuGet dependencies",
-      "description": "These packages are usually set to a user-defined minimal supported version such as 6.0.0 for .NET 6, and they are overriden by consuming applications",
-      "enabled": false
-    },
-    {
-      "matchPackageNames": ["dotnet-sdk"],
-      "groupName": "Dotnet SDK",
-      "description": "Only update patch and minor for the dotnet SDK version within the global.json",
-      "extends": [":disableMajorUpdates"]
-    },
-    {
-      "matchManagers": ["github-actions"],
-      "groupName": "GitHub actions dependencies"
-    }
-  ],
-  "vulnerabilityAlerts": {
-    "enabled": true,
-    "labels": ["security"]
+    "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+    "extends": [
+      "github>gsoft-inc/renovate-config"
+    ]
   }
-}